Application of ultrasonic irradiation method for preparation of ZnO nanostructures doped with Sb+3 ions as a highly efficient photocatalyst

Omidi, Amir; Habibi‐Yangjeh, Aziz; Pirhashemi, Mahsa

doi:10.1016/j.apsusc.2013.03.118

Cited by 49 publications

(13 citation statements)

References 37 publications

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“…For the ZnO (W) and ZnO (ext) samples, all of the peaks were ascribed to hexagonal crystalline phase of ZnO (JCPDS card No. 36-1451) [37]. Average crystallite sizes for the ZnO (W) and ZnO (ext) samples were calculated using Scherrer's equation to be 29 and 23 nm, respectively.…”

Section: Characterizationmentioning

confidence: 99%

Enhanced anti-bacterial activities of ZnO nanoparticles and ZnO/CuO nanocomposites synthesized using Vaccinium arctostaphylos L. fruit extract

Mohammadi-Aloucheh

Habibi‐Yangjeh

Bayrami

et al. 2018

Artificial Cells, Nanomedicine, and Biotechnology

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A green synthesis route was developed for preparation of the ZnO nanoparticles and ZnO/CuO nanocomposites by using Vaccinium arctostaphylos L. fruit extract, and their anti-bacterial activities against two pathogenic bacteria, Escherichia coli (Gram negative) and Staphylococcus aureus (Gram positive), were investigated. The fabricated nanomaterials were characterized by XRD, EDX, FESEM, TEM, TGA, FT-IR, UV-vis DRS and BET instruments. The results showed that the sizes of ZnO and CuO nanoparticles in the ZnO/CuO (10%) nanocomposite were 12 and 8 nm, respectively. In addition, specific surface areas of the ZnO (W), ZnO (ext) and ZnO/CuO samples were 29.3, 27.5 and 18.0 m/g, respectively. The results obtained from EDX, TGA, FT-IR and UV-Vis DRS analyses displayed that some of the organic compounds from the fruit extract have bonded to the surface of the samples fabricated in the presence of the fruit extract. The results revealed that the anti-bacterial activity of the fabricated samples is as ZnO/CuO (10%) > ZnO/CuO (5%) > ZnO (ext) > ZnO (W). Viability percentages for E. coli and S. aureus bacteria were 12.1 ± 0.39 and 14.9 ± 0.65 in the presence of the ZnO/CuO (10%) nanocomposite, respectively. The SEM images clearly demonstrated the disruption of the bacterial membranes during the inactivation process.

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Section: Characterizationmentioning

confidence: 99%

Enhanced anti-bacterial activities of ZnO nanoparticles and ZnO/CuO nanocomposites synthesized using Vaccinium arctostaphylos L. fruit extract

Mohammadi-Aloucheh

Habibi‐Yangjeh

Bayrami

et al. 2018

Artificial Cells, Nanomedicine, and Biotechnology

Self Cite

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“…However, the wide bandgap of ZnO significantly restricts its use under solar light because only a limited percentage of solar radiation is within the ultraviolet (UV) range. Several methods, such as crystal defect density control and chemical composition modification of ZnO nanostructures, have been adopted to improve the solar light-harvesting efficiency of ZnO [7, 8] and have produced limited improvements of the light-harvesting efficiency of ZnO. The efficiency levels of photoexcited devices made from ZnO nanostructures under solar light irradiation still require substantial improvement.…”

Section: Introductionmentioning

confidence: 99%

Photoexcited Properties of Tin Sulfide Nanosheet-Decorated ZnO Nanorod Heterostructures

Liang

Lung

2017

Nanoscale Res Lett

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In this study, ZnO–Sn2S3 core–shell nanorod heterostructures were synthesized by sputtering Sn2S3 shell layers onto ZnO rods. The Sn2S3 shell layers consisted of sheet-like crystallites. A structural analysis revealed that the ZnO–Sn2S3 core–shell nanorod heterostructures were highly crystalline. In comparison with ZnO nanorods, the ZnO–Sn2S3 nanorods exhibited a broadened optical absorption edge that extended to the visible light region. The ZnO–Sn2S3 nanorods exhibited substantial visible photodegradation efficiency of methylene blue organic dyes and high photoelectrochemical performance under light illumination. The unique three-dimensional sheet-like Sn2S3 crystallites resulted in the high light-harvesting efficiency of the nanorod heterostructures. Moreover, the efficient spatial separation of photoexcited carriers, attributable to the band alignment between ZnO and Sn2S3, accounted for the superior photocatalytic and photoelectrochemical properties of the ZnO–Sn2S3 core–shell nanorod heterostructures.

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“…This may be due to the Co 2+ can be substitutionally incorporated into the Zn 2+ sites of ZnO lattice; consequently the host ZnO crystallite size could be reduced. Ravichandran et al [30] reported the same nature.…”

Section: Resultsmentioning

confidence: 73%

Structural and magnetic properties of cobalt doped ZnO thin films deposited by cost effective nebulizer spray pyrolysis technique

Abirami¹,

Arulanantham²,

Wilson³

2020

Mater. Res. Express

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In this work, we report the structural, optical and magnetic properties of Co doped ZnO thin films fabricated by nebulizer spray pyrolysis technique. Five different thin films were fabricated with various doping concentration of cobalt. These thin films posses hexagonal wurtzite structure with polycrystalline nature and strongly oriented along with (002) and (101) direction. From x-ray diffraction pattern, average crystallite sizes were calculated and are found to be decreases with Co doping concentration. The dislocation density and microstrain values of the coated films increased gradually with doping concentration. The SEM/AFM studies reveal the change from spherical shape to petal shaped grains and it is also found that the size of grains and roughness decreases with Co increasing doping concentration. The lowering of the optical band gap energy from ∼ 3.24 eV to 3.05 eV shows doping by Co in ZnO gives rise to band gap bowing in ZnO:Co thin films. The M-H curve confirms the god ferromagnetism in Co doped ZnO thin films.

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Application of ultrasonic irradiation method for preparation of ZnO nanostructures doped with Sb+3 ions as a highly efficient photocatalyst

Cited by 49 publications

References 37 publications

Enhanced anti-bacterial activities of ZnO nanoparticles and ZnO/CuO nanocomposites synthesized using Vaccinium arctostaphylos L. fruit extract

Enhanced anti-bacterial activities of ZnO nanoparticles and ZnO/CuO nanocomposites synthesized using Vaccinium arctostaphylos L. fruit extract

Photoexcited Properties of Tin Sulfide Nanosheet-Decorated ZnO Nanorod Heterostructures

Structural and magnetic properties of cobalt doped ZnO thin films deposited by cost effective nebulizer spray pyrolysis technique

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